Boston police say a young man riding a bicycle was killed when he was struck by one or both of the vehicles involved in a collision.
The victim, described as a teenager, was struck at about 10 p.m. Tuesday at the intersection of Talbot and New England streets in Dorchester.
His name was not immediately made public.
Police say they are looking for a Cadillac involved in the crash, which left the scene.
Cheline Garcia tells the Boston Herald she was putting her kids to bed when she heard the impact. Garcia, a medical assistant, went outside and saw the boy on his back and immediately started chest compressions until EMTs arrived. She said he had a pulse but was not breathing.